package com.mmall.service.Impl;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.google.common.collect.Lists;
import com.mmall.common.Const;
import com.mmall.common.ResponseCode;
import com.mmall.common.ServerResponse;
import com.mmall.dao.CategoryMapper;
import com.mmall.dao.ProductMapper;
import com.mmall.pojo.Category;
import com.mmall.pojo.Product;
import com.mmall.service.ICategoryService;
import com.mmall.service.IProductService;
import com.mmall.util.DateTimeUtil;
import com.mmall.util.PropertiesUtil;
import com.mmall.vo.ProductDetailVo;
import com.mmall.vo.ProductListVo;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;


/**
 * @Author: Czh
 * @Date: 2019/4/18  13:06
 * @Version: 1.0
 **/
@Service("iProductService")
public class ProductServiceImpl implements IProductService {

    @Autowired
    private ProductMapper productMapper;
    @Autowired
    private CategoryMapper categoryMapper;

    @Autowired
    private ICategoryService iCategoryService;

    @Override
    public ServerResponse saveAndUpdateProduct(Product product){
        if (product != null){
            //将副图第一张设置为主图
            if (StringUtils.isNotBlank(product.getSubImages())){
                String[] subImagesArray = product.getSubImages().split(",");
                if (subImagesArray.length > 0){
                    product.setMainImage(subImagesArray[0]);
                }
            }
            if (product.getId() != null){
                int rowCount = productMapper.updateByPrimaryKeySelective(product);
                if (rowCount > 0 ){
                    return ServerResponse.createBySuccessMessage("更新商品成功");
                }
                return ServerResponse.createByErrorMessage("更新商品失败");
            } else {
                int rowCount = productMapper.insert(product);
                if (rowCount > 0){
                    return ServerResponse.createBySuccessMessage("新增商品成功");
                }
                return ServerResponse.createByErrorMessage("新增商品失败");
            }
        }
        return ServerResponse.createByErrorMessage("新增或更新产品参数不正确");
    }

    @Override
    public ServerResponse setSaleStatus(Integer productId , Integer status){
        if (productId == null || status == null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.ILLEGAL_ARGUMENT.getCode(),ResponseCode.ILLEGAL_ARGUMENT.getDesc());
        }
        Product product = new Product();
        product.setId(productId);
        product.setStatus(status);

        int rowCount = productMapper.updateByPrimaryKeySelective(product);
        if (rowCount > 0){
            return ServerResponse.createBySuccessMessage("更新产品销售状态成功");
        }
        return ServerResponse.createByErrorMessage("更新产品销售状态失败");
    }

    @Override
    public ServerResponse<ProductDetailVo> manageProductDetail(Integer productId){
        if (productId == null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.ILLEGAL_ARGUMENT.getCode(),ResponseCode.ILLEGAL_ARGUMENT.getDesc());
        }
        Product product = productMapper.selectByPrimaryKey(productId);
        if (product == null ){
            return ServerResponse.createByErrorMessage("产品已下架或者已删除");
        }
        //VO对象--value object
        //pojo->bo(business object)->vo(view object)
        ProductDetailVo productDetailVo = assembleProductDetailVo(product);
        return ServerResponse.createBySuccess(productDetailVo);
    }

    private ProductDetailVo assembleProductDetailVo(Product product){
         ProductDetailVo productDetailVo = new ProductDetailVo();

         productDetailVo.setId(product.getId());
         productDetailVo.setSubtitle(product.getSubtitle());
         productDetailVo.setPrice(product.getPrice());
         productDetailVo.setMainImage(product.getMainImage());
         productDetailVo.setSubImages(product.getSubImages());
         productDetailVo.setCategoryId(product.getCategoryId());
         productDetailVo.setDetail(product.getDetail());
         productDetailVo.setName(product.getName());
         productDetailVo.setStatus(product.getStatus());
         productDetailVo.setStock(product.getStock());
         //imageHost
         productDetailVo.setImageHost(PropertiesUtil.getProperty("ftp.server.http.prefix","http://img.happymmall.com/"));
         //parenCategoryId
         Category category = categoryMapper.selectByPrimaryKey(product.getCategoryId());
         if (category == null){
             productDetailVo.setParentCategoryId(0);
         }else {
             productDetailVo.setParentCategoryId(category.getParentId());
         }
         //createTime
         productDetailVo.setCreateTime(DateTimeUtil.dateToStr(product.getCreateTime()));
         //updateTime
         productDetailVo.setUpdateTime(DateTimeUtil.dateToStr(product.getUpdateTime()));

        return productDetailVo;
    }



    @Override
    public ServerResponse<PageInfo> getProductList(int pageNum , int pageSize){
        //startPage -- start
        //填充自己sql查询逻辑
        //pageHelper-收尾
        PageHelper.startPage(pageNum,pageSize);
        List<Product> productList = productMapper.selectList();
        List<ProductListVo> productListVoList = Lists.newArrayList();
        for (Product productItem : productList) {
            ProductListVo productListVo = assembleProductListVo(productItem);
            productListVoList.add(productListVo);
        }
        PageInfo pageResult = new PageInfo(productList);
        pageResult.setList(productListVoList);
        return ServerResponse.createBySuccess(pageResult);

    }

    private ProductListVo assembleProductListVo(Product product){
        ProductListVo productListVo = new ProductListVo();
        productListVo.setId(product.getId());
        productListVo.setCategoryId(product.getCategoryId());
        productListVo.setName(product.getName());
        productListVo.setMainImage(product.getMainImage());
        productListVo.setPrice(product.getPrice());
        productListVo.setStatus(product.getStatus());
        productListVo.setSubtitle(product.getSubtitle());
        productListVo.setImageHost(PropertiesUtil.getProperty("ftp.server.http.prefix","http://img.happymmall.com/"));
        return productListVo;
    }

    @Override
    public ServerResponse<PageInfo> searchProduct(String productName , Integer productId , int pageNum , int pageSize){
        PageHelper.startPage(pageNum , pageSize);
        if(StringUtils.isNotBlank(productName)){
            productName = new StringBuffer().append("%").append(productName).append("%").toString();
        }
        List<Product> productList = productMapper.selectByNameAndProductId(productName , productId);

        List<ProductListVo> productListVoList = Lists.newArrayList();
        for(Product productItem : productList){
            ProductListVo productListVo = assembleProductListVo(productItem);
            productListVoList.add(productListVo);
        }
        PageInfo pageResult = new PageInfo(productList);
        pageResult.setList(productListVoList);
        return ServerResponse.createBySuccess(pageResult);
    }


    @Override
    public ServerResponse<ProductDetailVo> getProductDetail(Integer productId){
        if (productId == null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.ILLEGAL_ARGUMENT.getCode(), ResponseCode.ILLEGAL_ARGUMENT.getDesc());
        }
        Product product = productMapper.selectByPrimaryKey(productId);
        if (product == null){
            return ServerResponse.createByErrorMessage("产品已下架或已删除");
        }
        if (product.getStatus() != Const.ProductStatusEmun.ON_SALE.getCode()){
            return ServerResponse.createByErrorMessage("产品已下架或已删除");
        }
        //VO对象--value object
        //pojo->bo(business object)->vo(view object)
        ProductDetailVo productDetailVo = assembleProductDetailVo(product);
        return ServerResponse.createBySuccess(productDetailVo);
    }

    @Override
    public ServerResponse<PageInfo> getProductByKeywordCategory(String keyword , Integer categoryId , Integer pageNum , Integer pageSize , String orderBy){
        if (StringUtils.isBlank(keyword) && categoryId == null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.ILLEGAL_ARGUMENT.getCode() ,
                    ResponseCode.ILLEGAL_ARGUMENT.getDesc());
        }
        List<Integer> categoryIdList = new ArrayList<Integer>();
        if (categoryId != null) {
            Category category = categoryMapper.selectByPrimaryKey(categoryId);
            if (category == null) {
                //没有该分类，并且没有关键字，这个时候返回一个空的结果集，不报错
                PageHelper.startPage(pageNum, pageSize);
                List<ProductListVo> productListVoList = Lists.newArrayList();
                PageInfo pageInfo = new PageInfo(productListVoList);
                return ServerResponse.createBySuccess(pageInfo);
            }
            categoryIdList = iCategoryService.selectCategoryAndChildrenById(category.getId()).getData();
        }

        //关键字处理
        if (StringUtils.isNotBlank(keyword)){
            keyword = new StringBuffer().append("%").append(keyword).append("%").toString();
        }
        PageHelper.startPage(pageNum,pageSize);
        //排序
        if (StringUtils.isNotBlank(orderBy)){
            //判断传来的字符串是否在set里面
            if (Const.ProductListOrderBy.PRICE_ASC_DESC.contains(orderBy)){
                String[] orderByArray = orderBy.split("_");
                PageHelper.orderBy(orderByArray[0] + " " + orderByArray[1]);
            }
        }
        List<Product> productList = productMapper.selectByNameAndCategoryIds(StringUtils.isBlank(keyword)?null:keyword , categoryIdList.size()==0?null:categoryIdList);
        List<ProductListVo> productListVoList = Lists.newArrayList();
        for (Product product : productList) {
            ProductListVo productListVo = assembleProductListVo(product);
            productListVoList.add(productListVo);
        }
        PageInfo pageInfo = new PageInfo(productList);
        pageInfo.setList(productListVoList);

        return ServerResponse.createBySuccess(pageInfo);




    }




}
